Uncovering the complexity of Tourette syndrome, little by little

Abstract

The aetiology of Tourette syndrome is highly complex and still poorly understood. In this issue, using data from a large, prospective, population-based cohort of children, Mathews et al examine associations of preand perinatal exposures with Tourette syndrome and other chronic tic disorders. Their work illustrates the importance of environmental factors in the aetiology of neuropsychiatric conditions and the value of replication in science.